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    Subject[PATCH net-next v2 2/3] net: ipvlan: add net device refcount tracker
    Date
    Add net device refcount tracker to ipvlan.

    Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
    ---
    drivers/net/ipvlan/ipvlan.h | 1 +
    drivers/net/ipvlan/ipvlan_main.c | 4 ++--
    2 files changed, 3 insertions(+), 2 deletions(-)

    diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
    index 3837c897832e..6605199305b7 100644
    --- a/drivers/net/ipvlan/ipvlan.h
    +++ b/drivers/net/ipvlan/ipvlan.h
    @@ -64,6 +64,7 @@ struct ipvl_dev {
    struct list_head pnode;
    struct ipvl_port *port;
    struct net_device *phy_dev;
    + netdevice_tracker dev_tracker;
    struct list_head addrs;
    struct ipvl_pcpu_stats __percpu *pcpu_stats;
    DECLARE_BITMAP(mac_filters, IPVLAN_MAC_FILTER_SIZE);
    diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
    index dcdc01403f22..be06f122092e 100644
    --- a/drivers/net/ipvlan/ipvlan_main.c
    +++ b/drivers/net/ipvlan/ipvlan_main.c
    @@ -160,7 +160,7 @@ static int ipvlan_init(struct net_device *dev)
    port->count += 1;

    /* Get ipvlan's reference to phy_dev */
    - dev_hold(phy_dev);
    + dev_hold_track(phy_dev, &ipvlan->dev_tracker, GFP_KERNEL);

    return 0;
    }
    @@ -674,7 +674,7 @@ static void ipvlan_dev_free(struct net_device *dev)
    struct ipvl_dev *ipvlan = netdev_priv(dev);

    /* Get rid of the ipvlan's reference to phy_dev */
    - dev_put(ipvlan->phy_dev);
    + dev_put_track(ipvlan->phy_dev, &ipvlan->dev_tracker);
    }

    void ipvlan_link_setup(struct net_device *dev)
    --
    2.25.1
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